sortedtreemodel.h 1.99 KB
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/****************************************************************************
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**
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** Copyright (C) 2016 Jochen Becher
** Contact: https://www.qt.io/licensing/
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**
** This file is part of Qt Creator.
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** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
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**
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** GNU General Public License Usage
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** General Public License version 3 as published by the Free Software
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#pragma once
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#include <QSortFilterProxyModel>
#include "qmt/infrastructure/qmt_global.h"

#include <QTimer>

namespace qmt {

class TreeModel;

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class QMT_EXPORT SortedTreeModel : public QSortFilterProxyModel
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{
    Q_OBJECT

public:
    explicit SortedTreeModel(QObject *parent = 0);
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    ~SortedTreeModel() override;
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    TreeModel *treeModel() const { return m_treeModel; }
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    void setTreeModel(TreeModel *treeModel);
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protected:
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    bool lessThan(const QModelIndex &left, const QModelIndex &right) const override;
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private:
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    void onTreeModelRowsInserted(const QModelIndex &parent, int start, int end);
    void onDataChanged(const QModelIndex &, const QModelIndex &, const QVector<int> &);
    void onDelayedSortTimeout();

    void startDelayedSortTimer();

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    TreeModel *m_treeModel;
    QTimer m_delayedSortTimer;
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};

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} // namespace qmt